Apparatus for administering liquid anesthetics.



PATENTED AUG. '7, 1906.

.J. A. HOLLENBERGBR. APPARATUS FOR ADMINISTERING LIQUID ANESTHETIGS.

APPLICATION FILED SEPT. 14. 1906.

" wvenl'oz WASHINGTON, n.

UNITED STATES PATENT OFFICE.

JOHN A. HOLLENBERGER, OF HAGER ST'OVVN, MARYLAND.

APPARATUS FOR ADM'INISTERING 'LlQUlD ANESTHETI-CS.

Specification of Letters Patent.

Patented Aug. 7, 1906.

Application filed September 14, 1905. Serial No- 278,475.

To all whom it may concern:-

Be it known that 1, JOHN A. HOLLENBER full, clear, and-exact description of the invention, such as will enable others skilled in the :art to which it .appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference'marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in inhalers or respirators; and the object in view is to produce an apparatus especially adapted for the administration of so-mnoform and kelene, both well known and extensively used anesthetics, and in carrying-out my invention I aim to produce means whereby the waste of volatile liquids and ex- .pensiveanesthetics is reduced to a minimum by the provision of apparatus which allows the anesthetic to be turned on or liberated at each inhalation of patient a small quantity rat a time. In this Way there is absolutely no waste and the patient breathes without any of the usual manifestations of suffocating.

More specifically, the invention comprises a holder vfor the bottle or tube of the liquid anesthetic and also a flexible and valvereg ulated tube through which the anesthetic passes mto a passage-way communicating between a mouthpiece and a yielding bag.

My invention comprises various details of constructionsand combinations and arrangements-of parts, which will be hereinafter fully described, and then specifically defined in the appended claims.

1 illustrate my invention in the accom- ,p an-ying drawings, in which- Figure 1 is a perspective view of my wimprovedzapparatus for administering an anesthetic, a part of the bag being broken away. Fig. 2 is a vertical sectional view through a portion of the apparatus. Fig. 3 is a detail perspective view of the receptacle-holders Fig. 4 is a cross-sectional view online 4 4 of Fig. 2. Fig 5 is a detail perspective view of one end of the shell over which the mouthpiece fits, and Fig. 6 is a detail perspective view of a kelene-tube holder.

Reference now being had to the details .of the drawings by letter, A designates a hollow tubular shell, one end of which terminates in an enlarged chambered portion A, whichZhas its lower end B outwardly flaring, forming ,a flange over which the contracted openingof the bag 0 is caught, as shown clearly in the drawings. Said chambered. portion A..=con tains a sponge D, which is adapted to be saturated with alcohol or any other suitable liquid which is provided for the purpose of acting as a stimulantza-nd oflsettinganytendency to nausea to the patient being treated, and a rod D is secured insaid;.-charnbered portion and afl'ordsnieans for supporting. the

sponge. Opening through said shell-isan' open-ended tube E, over the outer endiof which one end of the flexible tube F is placed, as shown clearly in Figs. land 2 of the drawings, and the other end of said flexible tube is fitted over the nozzle H of the tubeH of the ordinary receptacles for kelene and :somno form anesthetics. A spring-pressed value K, which is fastened to the neck .of said receptacle H, holds a part of the flexiblemtube F against the nozzle .end H to prevent the :escape of the liquid anesthetic, eX-cepting.,.at such a time as it might be desired .to allow the same to escape through the flexible tube F and tube E into the shell A.

G designates a transverse partition-which is formed at one end of the shell Aand is provided for the purpose of preventing any 30f the liquid anesthetic fromvrunning outthe end of the shell.

N designates a mouthpiece ,of the usual construction, having a tubular pneumatic cushion L about its flaring end whichv is in-v flated through the medium of the pipe L, and the tapering end of said mouthpiecehas an inturned part N, so .shapedas totelescope over the outer end of the .shell A,.,.as sfhow;n clearly in Fig. 2 of the drawings.

Referring to Figs. 1 and 4 willbe seen-a shell 0, which is circular in outlineiandis fastened to thechambered portion A near .one edge of the top thereof. Said shellO is provided to receive a bottle, such as commonly contains somnoform, or bottles containing other anesthetics, and which are provided with nozzles to which the rubber tubing may be connected. -Q designates a similar shell to the shell 0, adapted to hold the usual kelene-tube, and to the lower portion of the shell Q is fastened a slide-plate R, the edges of which are designed to slide between the yielding edges of the shell O and retain the shell Q securely in place. Projecting forward from the slide-plate R is a supportingstrip T, provided to prevent the kelene-tube from pushing back when pressing on valve, the forward end of said strip engaging the neck of the receptacle H in the manner shown in Fig. 2 of the drawings.

From the foregoing it will be noted that I provide means for utilizing anesthetic -re ceptacles of cliiferent shapes and sizes, and

when it, is desired to dispense with the shell Q the latter may be removed from the shell 0, and the receptacle, such as is commonly employed in storing somnoform, may be held by the shell 0, in which instance the connection being. made with the flexible tube, as

illustrated in Fig. 2 of the drawings.

By the provision of my improved apparatus for administering liquid anesthetics it Will be noted that any loss of the exceedingly volatile anesthetics which are commonly in use is absolutely prevented, for the reason that when the mouthpiece is held over the mouth and nose of a patient the patient invalve-regulated flexible tube, and in the exhales the air in the flexible bag and in so doing takes in the anesthetic, which is administered a little at each inhalation through the halation from the lungs the air passes back to the bag, which being flexible will yield, and

Without the escape of any of the anesthetic to the atmosphere.

Heretofore in the administering of anesthetics which are of a highly volatile nature, as in the case of the kelene and the somno- .form, a large percentage of the anesthetic is lost, as it evaporates in the atmosphere, and hence it has made the use of these highlyeflicient anesthetics a considerable expense, whereas by the provision of my improved anesthetic apparatus I am able to administer volatile liquid anesthetics without any loss whatever- Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. An apparatus for administering liquid anesthetics comprising a shell, having a mouthpiece and a flexible bag communicating therewith, an anesthetic-receptacle and holder therefor, a flexible tube communicat I ing between said receptacle and the interior of said shell and mout piece, and a valve for holding a portion of said flexible tube over the exit end of said receptacle, as set forth.

2. An apparatus for administering liquid anesthetics, comprising a shell, having a mouthpiece and a flexible bag communicating therewith, a holder secured to said shell, an anesthetic-receptacle supported by said holder, a flexible tube communicating between said receptacle and the interior of said shell and mouth iece, and a valve ada ted to hold a portion 0 said flexible tube against the exit end of said receptacle, as set forth.

3. An apparatus for administering liquid anesthetics, comprising a shell, having a mouthpiece and a flexible bag communicating therewith,a holderfastened to said shell,an anesthetic containing receptacle supported by said holder and having a valve-regulated nozzle ,an open-ended tube extending through the wall of said shell, a flexible tube iitted over one end of said open-ended tuheand also over said nozzle and between the exit end of said nozzle and said valve, as set forth.

4. An apparatus for administering liquid anesthetics, comprising a shell, having a mouthpiece and a flexible bag communicating therewith, one end of said shell having a transverse partition partially closing an opening in the end thereof, and a chambered portion at the other end, the bag having an opening therein connected to said chambered portion, a mouthpiece telescoping over the end of the shell having said partition, an openended tube extending through the wall of the shell, a receptacle for a liquid anesthetic and holder therefor, a flexible tube communicating between said receptacle and open-ended tube, and a valve adapted to hold a portion of said flexible tube against the exit end of said receptacle, as set forth.

5. An apparatus for administering liquid anesthetics, comprising a shell, a mouthpiece connected at one end to said shell, its other end having a chambered portion with a bag having an opening, the marginal edges of which are connected to a flange of said portion, a shell fastened to said chambered portion and having its opposite longitudinal edges spaced apart and adapted to yield, a receptacle holder, a plate secured thereto and adapted to be engaged by said yielding edges of the shell, an anesthetic-containing receptacle supported by said holder, and a valve regulated tube communicating between the same and the mouthpiece, as set forth.

6. An apparatus for administering liquid anesthetics, comprising a shell, a mouthpiece connected at one end to said shell, its other end having a chambered portion with a bag having an opening, the marginal edges of which are connected to a flange of said porholder and said strip, and a valve-regulated 10 tion, a shell fastened to said chambered porpipe communicating between'said receptacle tion and having its opposite longitudinal and the mouthpiece, as set forth.

edges s aced apart and adapted to yield, a re- In testimony whereof I hereunto affiX my eeptac e-holder, a plate secured thereto and signature in the presence of two Witnesses. adapted to be engaged by said yielding edges JOHN A. HOLLENBERGER of the shell, a metallic strip secured to said Witnesseszg plate and projecting in advance of said holder, W. C. GRIFFITH,

an anesthetic-receptacle supported by said 1 J. E; KELLER. 

